The parish was divided into the hamlets of Alltgreig, Blaenegel, Caegurwen, and Mawr.
|1536 - 31 March 1974||Glamorgan|
|1 April 1974 - 31 March 1996|
|from 1 April 1996|
The parish of Llan-giwg formed part of the Neath Registrar's District.
- The following Llan-giwg Parish Registers have been deposited at the ______ Records Office in :
- The Glamorgan Family History Society have published many of the parish registers.
Nonconformist Church Records
The following chapel records from Llan-giwg parish are available on the IGI:
The following chapel records have been deposited at an archive:
|Pant teg||Christenings 1822-1837|| TNA RG4 3495
Births, marriages and deaths in Llan-giwg will be recorded in the GRO indexes as:
|1 Jul 1837 - 1974|
- Saron Chapel (old & new)
- Cwmllynfell (old & new)
- Llan-giwg parish church
Poor Law Union
- The History of Pontardawe by J.E. Morgan